Embroidering-machine.



-J. TOBLER, In. EMBROIDERlNG MACHINE. APPLICATION HLLD JULY a. 1916.

Patented Mar. 5, 1918.

2 SHEETS-SHEET I.

I. TOBLER, 1a.. EMBROIDERING MACHINE.

APPLICATION HLEQ JULY 3, l9l6.

Patented Mar. 5, 1918.

2 SHEETS-SHEET 2 All [if i UNITED STATES "Parent curios.

JAKOZB TQBLER, an; or VONWIL, NEAR s'r. GAL-LEN, SWITZERLAND.

EMBRoInERINe-MAcHmn Specification of Letters Patent. "Patented lilal'. 5, 1918 Application filed July 3, 191 6. Serial No. 107,384.

To all whom it may concern:

a citizen of the Swiss Confederation, and

residing at Vonwil, near St. Gallen, Switzerland, have invented certain new and useful Improvements in Embroidering-Machines, of which the following is a specification.

The present invention has reference to certain new and useful improvements in embroidering machines, and relates more specifically to improvements in the cutting mechanism for certain such machines, and the invention essentially'resides in the improved construction of cutting device, which includes two divergently disposed cutting members, as will hereinafter be fully described. V r

I am well aware that there are already known various constructions of cutting devices for severingtheembroidered portion along its worked'edge from thewaste portion of the ground fabric, in which the fabric is fed in between two cutting members. In all of these constructions, as fares-I am aware, the two cuttingblades are more-or less widely interspaced, leaving between them an adjustable slit or" even width throughout for the passage-of the fabric. Such cutters, however, have been found to operate more or less unsatisfactorily in the case of delicate, fine ground-fabrics and also in the case of coarser groundfabrics with intricate edge designs which olfer certain difficulties in cuttingr According to the present invention I have succeeded in constructing a'cutting device which will readily dispose of the finest or coarsest work with the most intricate edg ings, by disposing the two cutting blades at a slight angle relative to one another,which leaves between them a work feed passage of decreasing width, which in operation '01)- viates all objections attaching tothe old even-width work intake passage.

The nature of my invention will best be understood, when described with reference to the accompanying drawings, in which Figure 1 represents a plan view of a prefer-red form of construction of the improved cutting device; Fig. 2 shows an end view,

and Fig. 3a front view thereof. Figs. 4

and 5 respectively show front and plan views of amodified form ofcopstruction, and Figs. 6 and 7 vertical sections therethrough'on lines A-B, and C-D, of- Fig. 4.

In the cut-ting device according to Figs.

changing the angle of adjustment.

1-3 the blade carrier 1 on its upper face is depressed and in this depression supports 1 i the cutting blade 2. A cover plate 3, overlapping this blade, is provided at the ends with laterally extending pins 4 and is journaled'therewith in the thickened end portions of the carrier member, flanking the intermediate depressed portion. For operatively pressing the cover plate 3 against the blade, and the latter against the carrier, the leaf spring 5 is provided which is suitably secured at the one end of the carrier, for instance by means of the screws 5-, and which contactingly eXtends the greater extent of the cover plate. Tothe carrier 1 is hinged by the links 6 a rod 7 from which rigidly dependsthe elbow member 8 to the front end of which is secured the counter cutter member ,9, whichis here shown in the form of an angle bar having a beveled upper cutting edge 9; and the main blade and the counter cutting member are yieldlngly mterconnectedby meansrof springs'lO and 11, which are operatively interposed between the blade carrier-land the rod 7. Of these the spring 10 is a draw-spring'and the springll a compression-spring, and the latter is controlledby an adjusting screw12. The arrangement'of these springs and their operative force is so adjusted thatthe coun-.

.ter cutting member 9 is pressed against the I blade always with the required; varying pressure, and the twocutting blades are relatively so disposed that their actual cuttingedges contact only to a restricted ex tent and then diverge from oneanother, as shown in Fig. 3.

By means of the studs 13 and 14 the cutting device is secured to the embroidering mach1ne,'intermed1ate the two parallel belts which serve to feedithe goods to be out,

which parts, being well known in the art and not forming part of my invention, need no illustration and description here.

feed of the embroidered goods, as shown in Fig. 1, the stud 13 serving as pivot when In cutting the workpiece a (Figs. 1' and 2) it is introduced by hand between the two cutting members 2 and 9 and, by the .em-. "broidered edge portion of the-fabric catch ing on the cutting blade 2', is then sharply cut oil from the rest of the groundfabric,

7 The cutting device. is to be arranged ob- V 'member 9, the fabric .on being'fed in between the two cutting members is severed already by'the mere feed movement, whereby all kinds of embroideries, even the finestqualities, are cut out with the greatest precision; and owing to the yielding connection of blade and counter blade the cutting device readily adapts itself to fabrics of varying thickness.

In the modification illustrated in Figs. 47, 1 denotes the blade carrier, 2the blade, and 13, 14 the studs by which the cuttin device is secured to the embroidering machine proper, The blade carrier 1' is provided with a longitudinally extending crossslot 15 (Fig. 7) for the passage of the waste portion of the fabric, cut off from the embroidered portion a. To the blade carrier is linkedby means of the hinges 16a cover plate 3 for the blade 2, which latter is secured to the carrier 1 by means of the screws 17., The counter inember'in this construction is in the form of a second knife blade 9.", which is clamped between a cover plate 18 and an angular support 19, screws 21 holding the several parts together. The support 19 is linked to the blade carrier 1' by means of the hinges 20, which, as shown,

are three-part and also connect the cover' plate 1.8 to the support 19. To the blade carrier 1 are further secured three pressure springs 22, bearing against the angular support 19, which latter can be adjusted rela- 1 tive to the carrier 1, against the action of these springs 22, by means of the adjusting screw 23. V I

As shown in Fig. 4, the blades 2" and 9" are likewise divergingly arranged, whereby an intake slit of decreasing width is present- (Jopies of this patent may be obtained for adjusted as to size by manipulation of the screw 23 to accommodate fabrics of varyingv thickness. \V hat I claim is V 1. In a cutting device for embroidering' machines, in combination, an upper cutting member, a lower cutting member, means for yieldably connecting the two said cutting members, means for limiting the space be- .ed between the two blades, which slit canbe tween said members, said members being disposed at an angle toward one another wherebya work intake slit of decreasing width is presented between them, means for' adjusting the initial width of said slit, and

means foroperatively connecting said cut-' ting device to the embroidering machine frame.

"2. 1m a cutting device for embroidering I j machines, in combination, an uppercutting member, comprising a blade carrier, ablade,

mean for operatively securing said parts to one another; hinge connections betweenv the said two cutting members; resillent means interposed between the said two cutting members, and means for regulating the action; of.

such resilient means, the said two cutting members being dlsposed at an angle toward one another in such manner that between them a work intake slit of decreasing width" five" cents each; li y-addressing the Commissioner of Patents, Washington, 1L6. i 1. 

